Add HttpClient:put/delete/head/patch.

sdk/lib/io/http_impl.dart

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of dart.io;
 
 const int _OUTGOING_BUFFER_SIZE = 8 * 1024;
 
 class _HttpIncoming extends Stream<List<int>> {
   final int _transferLength;
@@ skipping 1531 matching lines @@
     // TODO(sgjesse): The path set here can contain both query and
     // fragment. They should be cracked and set correctly.
     return _openUrl(method, new Uri(
         scheme: "http", host: host, port: port, path: path));
   }
 
   Future<HttpClientRequest> openUrl(String method, Uri url) {
     return _openUrl(method, url);
   }
 
-  Future<HttpClientRequest> get(String host,
-                                int port,
-                                String path) {
-    return open("get", host, port, path);
-  }
+  Future<HttpClientRequest> get(String host, int port, String path)
+      => open("get", host, port, path);
 
-  Future<HttpClientRequest> getUrl(Uri url) {
-    return _openUrl("get", url);
-  }
+  Future<HttpClientRequest> getUrl(Uri url) => _openUrl("get", url);
 
-  Future<HttpClientRequest> post(String host,
-                                 int port,
-                                 String path) {
-    return open("post", host, port, path);
-  }
+  Future<HttpClientRequest> post(String host, int port, String path)
+      => open("post", host, port, path);
 
-  Future<HttpClientRequest> postUrl(Uri url) {
-    return _openUrl("post", url);
-  }
+  Future<HttpClientRequest> postUrl(Uri url) => _openUrl("post", url);
+
+  Future<HttpClientRequest> put(String host, int port, String path)
+      => open("put", host, port, path);
+
+  Future<HttpClientRequest> putUrl(Uri url) => _openUrl("put", url);
+
+  Future<HttpClientRequest> delete(String host, int port, String path)
+      => open("delete", host, port, path);
+
+  Future<HttpClientRequest> deleteUrl(Uri url) => _openUrl("delete", url);
+
+  Future<HttpClientRequest> head(String host, int port, String path)
+      => open("head", host, port, path);
+
+  Future<HttpClientRequest> headUrl(Uri url) => _openUrl("head", url);
+
+  Future<HttpClientRequest> patch(String host, int port, String path)
+      => open("patch", host, port, path);
+
+  Future<HttpClientRequest> patchUrl(Uri url) => _openUrl("patch", url);
 
   void close({bool force: false}) {
     _closing = true;
     // Create flattened copy of _idleConnections, as 'destory' will manipulate
     // it.
     var idle = _idleConnections.values.fold(
         [],
         (l, e) {
           l.addAll(e);
           return l;
@@ skipping 1025 matching lines @@
   const _RedirectInfo(this.statusCode, this.method, this.location);
 }
 
 String _getHttpVersion() {
   var version = Platform.version;
   // Only include major and minor version numbers.
   int index = version.indexOf('.', version.indexOf('.') + 1);
   version = version.substring(0, index);
   return 'Dart/$version (dart:io)';
 }